Thread: RAM Based Disk Drive?
I recently saw a Hard Disk Drive that is really 4GB of RAM with and SATA 1.5Gb/s serial interface. It's basically a hard disk drive that uses RAM. It also has a battery backup, so if you loose power, you don't loose your data.
Has anyone tried using this, and if so was there a noticeable performance increase?
On 10/31/06, Adam <adam@spatialsystems.org> wrote: > > > I recently saw a Hard Disk Drive that is really 4GB of RAM with and SATA > 1.5Gb/s serial interface. It's basically a hard disk drive that uses RAM. > It also has a battery backup, so if you loose power, you don't loose your > data. > > Has anyone tried using this, and if so was there a noticeable performance > increase? you are talking about the gigabyte i-ram. in the database world, you can achieve same thing (actually better) by sticking those ram sticks directly on the motherboard assuming you are in a 64 bit environment and the motherboard is decent. the main advantage of the iram that i see is faster boot times (big woop). call me when they have a version that does 256gb :-) merlin
On Tuesday 31 October 2006 11:48, "Merlin Moncure" <mmoncure@gmail.com> wrote: > you are talking about the gigabyte i-ram. in the database world, you > can achieve same thing (actually better) by sticking those ram sticks > directly on the motherboard assuming you are in a 64 bit environment > and the motherboard is decent. > > the main advantage of the iram that i see is faster boot times (big > woop). call me when they have a version that does 256gb :-) http://www.superssd.com/products_sub.htm And, of course, the real advantage to a solid-state drive is random access speed, which vastly improves both random writes and random reads. Not that I can afford one, of course ... -- Ginsberg's Theorem: 1) You can't win. 2) You can't break even. 3) You can't quit the game.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 10/31/06 13:48, Merlin Moncure wrote: > On 10/31/06, Adam <adam@spatialsystems.org> wrote: >> >> >> I recently saw a Hard Disk Drive that is really 4GB of RAM with and SATA >> 1.5Gb/s serial interface. It's basically a hard disk drive that uses >> RAM. >> It also has a battery backup, so if you loose power, you don't loose your >> data. >> >> Has anyone tried using this, and if so was there a noticeable performance >> increase? > > you are talking about the gigabyte i-ram. in the database world, you > can achieve same thing (actually better) by sticking those ram sticks > directly on the motherboard assuming you are in a 64 bit environment > and the motherboard is decent. > > the main advantage of the iram that i see is faster boot times (big > woop). call me when they have a version that does 256gb :-) OLTP rates are *much* higher with SSDs. (Even with lots of system RAM, you *still* have to write the data back to the disk, and that takes time.) But that's only if you've got a small db that needs *really* high tps rates. I'd rather spend my money on enough system RAM to keep the active portion of my DB in the OS cache. - -- Ron Johnson, Jr. Jefferson LA USA Is "common sense" really valid? For example, it is "common sense" to white-power racists that whites are superior to blacks, and that those with brown skins are mud people. However, that "common sense" is obviously wrong. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFFR7NCS9HxQb37XmcRArbfAJ4kLD4488yY/w/iCr66gamukWtO0wCgob05 1DvyBrP4zI2Un8oO9FEaOc0= =oOuz -----END PGP SIGNATURE-----
On 10/31/06, Alan Hodgson <ahodgson@simkin.ca> wrote: > On Tuesday 31 October 2006 11:48, "Merlin Moncure" <mmoncure@gmail.com> > wrote: > > you are talking about the gigabyte i-ram. in the database world, you > > can achieve same thing (actually better) by sticking those ram sticks > > directly on the motherboard assuming you are in a 64 bit environment > > and the motherboard is decent. > > > > the main advantage of the iram that i see is faster boot times (big > > woop). call me when they have a version that does 256gb :-) > > http://www.superssd.com/products_sub.htm > > And, of course, the real advantage to a solid-state drive is random access > speed, which vastly improves both random writes and random reads. well, some motherboards out there, for example the tyan vx50 (http://www.tyan.com/products/html/vx50b4881.html) can stock up to 128gb ram. For a database server, this will probably outperform the 'ramsan' on many workloads. the ramsan is easier to stack though. merlin